| 摘要 |
<p>The soft-start valve (1) has a main valve (7) that is biased or ready for biasing to disconnect the connection between primary duct (5) and secondary duct (6). The opening force of connection between the ducts is derived in a secondary pressure controlled operational mode of the valve. The pressure medium passes the valve through a choke from the primary duct to secondary duct. A switch over valve (15) permits switching of main valve between the secondary pressure and time controlled operational modes, by switching the main valve independent of secondary pressure, into open position.</p> |
